Labyrinth seal in disk storage drive
US4922406A · kind A · utility
47Cited by
8References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1988 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Jun 15, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/014
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk storage has one or more disks provided with center holes. An electric motor extends coaxially through these holes and has an external rotor to the outer circumference of which the disks are secured so that they rotate with the rotor. A seal is provided for at least reducing the escape of contaminants from the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.